Protocol study
Comparative Effectiveness of Intravenous Lidocaine, Magnesium Sulfate and Ketorolac for Renal Colic: A Study Protocol for a Randomized Controlled Trial
Tannaz Novinbahador 1 
, Seyed Pouya Paknezhad 2 , Habib Mottaghi Khosroshahi 3, Sadegh Ashrafian Fard 2, Zahra Vand Rajabpour 2 , Hadi Chitsaz Asl 2 , Maryam Soleimanpour 4, Robab Mehdizadeh Esphanjani 5 , Sajjad Ahmadi 2 , Hassan Soleimanpour 2 *